TY - JOUR
T1 - Paramagnetic Meissner Effect and Current Flow in YBCO Nanofiber Mats
AU - Pessoa, Alexsander L.
AU - Koblischka-Veneva, Anjela
AU - Carvalho, Claudio L.
AU - Zadorosny, Rafael
AU - Koblischka, Michael R.
N1 - Funding Information:
Manuscript received November 30, 2020; revised January 25, 2021 and February 3, 2021; accepted February 4, 2021. Date of publication February 10, 2021; date of current version March 12, 2021. This work was supported in part by the SUPERFOAM International Project funded by ANR and DFG under Grants ANR-17-CE05-0030 and DFG-ANR Ko2323-10, in part by the Brazilian Agencies São Paulo Research Foundation FAPESP under Grant 2016/12 390-6, in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior -Brasil (CAPES) - Finance Code 001, and in part by the National Council of Scientific and Technological Development CNPq, under Grant 302 564/2018-7. (Corresponding author: Michael Koblischka.) Alexsander L. Pessoa, Claudio L. Carvalho, and Rafael Zadorosny are with the Sao Paulo State University (UNESP), Campus at Ilha Solteira, Ilha Solteira 15385000, Brazil.
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2021/8
Y1 - 2021/8
N2 - Microstructural and magnetic characterizations of YBa2Cu3O7-δ nanowire fabric-like samples were performed. Fabric-like ceramic superconductors are nanoporous materials and can be applied, e.g., in magnetic shielding, since the porous morphology makes them extremely light-weight and effectively to be cooled. The samples were produced by the solution blow spinning (SBS) technique, starting from a sol-gel solution of the precursor materials in polyvinyl-alcohol. The morphology of the samples was characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction with the aim to analyze the possible current paths. The magnetic hysteresis loops revealed typical polycrystalline behavior, and field-cooling in various small applied fields shows the presence of the paramagnetic Meissner effect (PME), but in a distinctly different way as compared to melt-texured Bi2Sr2CaCu2O8+δ or Nb.
AB - Microstructural and magnetic characterizations of YBa2Cu3O7-δ nanowire fabric-like samples were performed. Fabric-like ceramic superconductors are nanoporous materials and can be applied, e.g., in magnetic shielding, since the porous morphology makes them extremely light-weight and effectively to be cooled. The samples were produced by the solution blow spinning (SBS) technique, starting from a sol-gel solution of the precursor materials in polyvinyl-alcohol. The morphology of the samples was characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction with the aim to analyze the possible current paths. The magnetic hysteresis loops revealed typical polycrystalline behavior, and field-cooling in various small applied fields shows the presence of the paramagnetic Meissner effect (PME), but in a distinctly different way as compared to melt-texured Bi2Sr2CaCu2O8+δ or Nb.
KW - YBCO
KW - microstructure
KW - nanowires
KW - paramagnetic Meissner effect
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U2 - 10.1109/TASC.2021.3058596
DO - 10.1109/TASC.2021.3058596
M3 - Article
AN - SCOPUS:85101486435
SN - 1051-8223
VL - 31
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 5
M1 - 9352479
ER -